#40979C
Closest named color: Sea (#3C9992). oklch(62.6% 0.083 200.5), rgb(64, 151, 156).
Aa
Black text reads best on this color (6.12:1).
About this color
#40979C is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.083 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.019 away. Black text reads best on it, at 6.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.12:1 |
| White text | 3.42:1 |
Values
| HEX | #40979C |
| RGB | rgb(64, 151, 156) |
| HSL | hsl(183, 42%, 43%) |
| OKLCH | oklch(62.6% 0.083 200.5) |
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 #40979C | 3.42:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #40979C | 6.12:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #40979C text on white | 3.42:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #40979C text on black | 6.12:1 | AA | Lc -40.1 | 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 500.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A3C9CB
oklch(80.9% 0.04 200.3)
-
Step 400
400
#6EADB1
oklch(70.7% 0.065 200.9)
-
Step 500
500 (this color)
#40979C
oklch(62.6% 0.083 200.5)
-
Step 600
600
#158388
oklch(55.6% 0.09 199.8)
-
Step 700
700
#006F74
oklch(49.2% 0.084 200.3)
-
Step 800
800
#0B5A5E
oklch(42.7% 0.069 200.4)
-
Step 900
900
#164A4D
oklch(37.7% 0.054 200.6)
-
Step 950
950
#0F2B2D
oklch(26.9% 0.034 201.6)
#40979C 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) | #8D919C | 0.084 |
| Deuteranopia (no green cones) | #7E869C | 0.078 |
| Tritanopia (no blue cones) | #009C98 | 0.029 |
| Achromatopsia (no color) | #8B8B8B | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40979C
#40979C
oklch(62.6% 0.083 200.5)
- #B57373
#B57373
oklch(62.5% 0.084 19.7)
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 #40979C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.019
- Teal Green #0A9396 ΔE 0.030
- Persian Green #2A9D8F ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.034
- Blue Green #0F9B8E ΔE 0.036
- Cadet Blue #5F9EA0 ΔE 0.037
- Grey Teal #5E9B8A ΔE 0.041
- Dull Teal #5F9E8F ΔE 0.043
Use #40979C 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.