#5B8FAC
Closest named color: Dusty Blue (#5A86AD). oklch(62.5% 0.071 234), rgb(91, 143, 172).
Aa
Black text reads best on this color (5.96:1).
About this color
#5B8FAC is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.071 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.027 away. Black text reads best on it, at 5.96:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.96:1 |
| White text | 3.51:1 |
Values
| HEX | #5B8FAC |
| RGB | rgb(91, 143, 172) |
| HSL | hsl(201, 33%, 52%) |
| OKLCH | oklch(62.5% 0.071 234) |
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 #5B8FAC | 3.51:1 | AA large text | Lc -68.1 | Content text, not long reading |
| Black text on #5B8FAC | 5.96:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #5B8FAC text on white | 3.51:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #5B8FAC text on black | 5.96:1 | AA | Lc -39.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ACC5D4
oklch(81% 0.034 234.2)
-
Step 400
400
#7FA7BE
oklch(70.7% 0.055 233.8)
-
Step 500
500 (this color)
#5B8FAC
oklch(62.5% 0.071 234)
-
Step 600
600
#417B9A
oklch(55.7% 0.078 233.9)
-
Step 700
700
#336783
oklch(49% 0.071 234.4)
-
Step 800
800
#2B546B
oklch(42.6% 0.06 235.1)
-
Step 900
900
#274656
oklch(37.7% 0.046 232.3)
-
Step 950
950
#182933
oklch(27.1% 0.029 235.2)
#5B8FAC 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) | #818EAD | 0.046 |
| Deuteranopia (no green cones) | #7685AC | 0.040 |
| Tritanopia (no blue cones) | #369798 | 0.055 |
| Achromatopsia (no color) | #898989 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B8FAC
#5B8FAC
oklch(62.5% 0.071 234)
- #AA7C5F
#AA7C5F
oklch(62.5% 0.071 53.3)
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 #5B8FAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.027
- Faded Blue #658CBB ΔE 0.030
- Blue Grey #758DA3 ΔE 0.031
- Silver Lake Blue #778DA9 ΔE 0.032
- Off Blue #5684AE ΔE 0.034
- Light Slate Gray #778899 ΔE 0.040
- Steel #738595 ΔE 0.043
- Cool Blue #4984B8 ΔE 0.046
Use #5B8FAC 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.