#1F4A4E
Closest named color: Dark Teal (#014D4E). oklch(38.1% 0.048 203.5), rgb(31, 74, 78).
Aa
White text reads best on this color (9.77:1).
About this color
#1F4A4E is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.048 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.018 away. White text reads best on it, at 9.77:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.14:1 |
| White text | 9.77:1 |
Values
| HEX | #1F4A4E |
| RGB | rgb(31, 74, 78) |
| HSL | hsl(185, 43%, 21%) |
| OKLCH | oklch(38.1% 0.048 203.5) |
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 #1F4A4E | 9.77:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #1F4A4E | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #1F4A4E text on white | 9.77:1 | AAA | Lc 92.5 | Preferred for body text |
| #1F4A4E text on black | 2.14:1 | Fails | Lc -9.9 | Not readable |
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 900.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CBDDDF
oklch(88.5% 0.019 204.8)
-
Step 300
300
#A7C8CB
oklch(81% 0.036 203.2)
-
Step 400
400
#75ACB1
oklch(70.8% 0.058 203.1)
-
Step 500
500
#4E979D
oklch(63.2% 0.073 202.5)
-
Step 600
600
#2C8188
oklch(55.6% 0.08 202.9)
-
Step 700
700
#1E6D74
oklch(49.2% 0.074 203.7)
-
Step 800
800
#1C595E
oklch(42.8% 0.061 202.9)
-
Step 900
900 (this color)
#1F4A4E
oklch(38.1% 0.048 203.5)
-
Step 950
950
#132B2D
oklch(27.1% 0.03 202.6)
#1F4A4E 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) | #44474E | 0.047 |
| Deuteranopia (no green cones) | #3D414E | 0.045 |
| Tritanopia (no blue cones) | #004D4B | 0.021 |
| Achromatopsia (no color) | #444444 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F4A4E
#1F4A4E
oklch(38.1% 0.048 203.5)
- #593836
#593836
oklch(37.9% 0.048 23.4)
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 #1F4A4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.018
- Charcoal #264653 ΔE 0.019
- Dark Slate Gray #2F4F4F ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.032
- Dark Blue Green #005249 ΔE 0.034
- Deep Teal #00555A ΔE 0.036
- Charcoal Grey #3C4142 ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.051
Use #1F4A4E 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.