#40879E
Closest named color: Teal Blue (#01889F). oklch(58.7% 0.079 221.9), rgb(64, 135, 158).
Aa
Black text reads best on this color (5.17:1).
About this color
#40879E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.079 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.027 away. Black text reads best on it, at 5.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #40879E |
| RGB | rgb(64, 135, 158) |
| HSL | hsl(195, 42%, 44%) |
| OKLCH | oklch(58.7% 0.079 221.9) |
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 #40879E | 4.05:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #40879E | 5.17:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #40879E text on white | 4.05:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #40879E text on black | 5.17:1 | AA | Lc -34.1 | 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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CCDCE3
oklch(88.5% 0.02 225.7)
-
Step 300
300
#A9C6D1
oklch(80.9% 0.035 222.7)
-
Step 400
400
#79A9BA
oklch(70.7% 0.057 221.9)
-
Step 500
500
#5494A9
oklch(63.2% 0.073 221.3)
-
Step 600
600 (this color)
#40879E
oklch(58.7% 0.079 221.9)
-
Step 700
700
#286A7E
oklch(49.1% 0.073 221.3)
-
Step 800
800
#235667
oklch(42.6% 0.061 223)
-
Step 900
900
#224754
oklch(37.6% 0.048 223.3)
-
Step 950
950
#152A31
oklch(27.1% 0.03 221.5)
#40879E 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) | #79849F | 0.064 |
| Deuteranopia (no green cones) | #6C7A9E | 0.057 |
| Tritanopia (no blue cones) | #008E8E | 0.047 |
| Achromatopsia (no color) | #7E7E7E | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40879E
#40879E
oklch(58.7% 0.079 221.9)
- #A56D57
#A56D57
oklch(58.9% 0.079 42.2)
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 #40879E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.027
- Blue NCS #118AB2 ΔE 0.035
- Cerulean #457B9D ΔE 0.035
- Stormy Blue #507B9C ΔE 0.036
- Off Blue #5684AE ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.037
- Steel Blue #4682B4 ΔE 0.042
- Grey Blue #647D8E ΔE 0.044
Use #40879E 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.