#438FAF
Closest named color: Dusty Blue (#5A86AD). oklch(61.5% 0.089 228.4), rgb(67, 143, 175).
Aa
Black text reads best on this color (5.78:1).
About this color
#438FAF is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.089 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.031 away. Black text reads best on it, at 5.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.78:1 |
| White text | 3.62:1 |
Values
| HEX | #438FAF |
| RGB | rgb(67, 143, 175) |
| HSL | hsl(198, 45%, 47%) |
| OKLCH | oklch(61.5% 0.089 228.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #438FAF | 3.62:1 | AA large text | Lc -69.2 | Content text, not long reading |
| Black text on #438FAF | 5.78:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #438FAF text on white | 3.62:1 | AA large text | Lc 63.7 | Content text, not long reading |
| #438FAF text on black | 5.78:1 | AA | Lc -38.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADDE6
oklch(88.6% 0.024 227.8)
-
Step 300
300
#A4C7D7
oklch(80.9% 0.044 227.3)
-
Step 400
400
#71AAC3
oklch(70.8% 0.07 227.4)
-
Step 500
500 (this color)
#438FAF
oklch(61.5% 0.089 228.4)
-
Step 600
600
#247EA0
oklch(55.7% 0.097 228.2)
-
Step 700
700
#146A89
oklch(49.1% 0.09 228.5)
-
Step 800
800
#15566F
oklch(42.6% 0.075 228.8)
-
Step 900
900
#1A475A
oklch(37.6% 0.058 229.1)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#438FAF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7E8DB1 | 0.064 |
| Deuteranopia (no green cones) | #6F81AF | 0.057 |
| Tritanopia (no blue cones) | #009899 | 0.057 |
| Achromatopsia (no color) | #868686 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #438FAF
#438FAF
oklch(61.5% 0.089 228.4)
- #B07454
#B07454
oklch(61.4% 0.089 48.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #438FAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.031
- Blue NCS #118AB2 ΔE 0.033
- Off Blue #5684AE ΔE 0.034
- Cool Blue #4984B8 ΔE 0.038
- Steel Blue #4682B4 ΔE 0.041
- Faded Blue #658CBB ΔE 0.041
- Teal Blue #01889F ΔE 0.046
- Blue Grey #758DA3 ΔE 0.053
Use #438FAF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.