#1F414D
Closest named color: Charcoal (#264653). oklch(35.5% 0.045 223.3), rgb(31, 65, 77).
Aa
White text reads best on this color (10.92:1).
About this color
#1F414D is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.045 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.020 away. White text reads best on it, at 10.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #1F414D |
| RGB | rgb(31, 65, 77) |
| HSL | hsl(196, 43%, 21%) |
| OKLCH | oklch(35.5% 0.045 223.3) |
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 #1F414D | 10.92:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #1F414D | 1.92:1 | Fails | Lc 8.7 | Not readable |
| #1F414D text on white | 10.92:1 | AAA | Lc 95.2 | Preferred for body text |
| #1F414D text on black | 1.92:1 | Fails | Lc -7.5 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#AAC6D1
oklch(80.9% 0.034 223.5)
-
Step 400
400
#7CA8B9
oklch(70.6% 0.053 223.8)
-
Step 500
500
#5993A8
oklch(63.2% 0.068 223.2)
-
Step 600
600
#3C7D93
oklch(55.6% 0.074 222.8)
-
Step 700
700
#2E697D
oklch(49% 0.069 223.2)
-
Step 800
800
#275666
oklch(42.7% 0.057 223)
-
Step 900
900 (this color)
#1F414D
oklch(35.5% 0.045 223.3)
-
Step 950
950
#162A31
oklch(27.1% 0.029 222.4)
#1F414D 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) | #3A404E | 0.036 |
| Deuteranopia (no green cones) | #333A4D | 0.032 |
| Tritanopia (no blue cones) | #004545 | 0.030 |
| Achromatopsia (no color) | #3D3D3D | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F414D
#1F414D
oklch(35.5% 0.045 223.3)
- #503429
#503429
oklch(35.5% 0.045 42.3)
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 #1F414D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.020
- Midnight Green #073B4C ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.030
- Onyx #343A40 ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.041
- Dark Teal #014D4E ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.048
Use #1F414D 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.