#1F414F
Closest named color: Charcoal (#264653). oklch(35.6% 0.046 227.1), rgb(31, 65, 79).
Aa
White text reads best on this color (10.89:1).
About this color
#1F414F is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.046 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.019 away. White text reads best on it, at 10.89:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.92:1 |
| White text | 10.89:1 |
Values
| HEX | #1F414F |
| RGB | rgb(31, 65, 79) |
| HSL | hsl(198, 44%, 22%) |
| OKLCH | oklch(35.6% 0.046 227.1) |
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 #1F414F | 10.89:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #1F414F | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #1F414F text on white | 10.89:1 | AAA | Lc 95.1 | Preferred for body text |
| #1F414F 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
#CDDCE3
oklch(88.5% 0.019 227.3)
-
Step 300
300
#AAC6D2
oklch(81% 0.035 225.6)
-
Step 400
400
#7CA8BC
oklch(70.7% 0.056 227.7)
-
Step 500
500
#5892AB
oklch(63% 0.071 227.5)
-
Step 600
600
#3C7C97
oklch(55.5% 0.078 228.2)
-
Step 700
700
#2D6980
oklch(49.1% 0.072 226.3)
-
Step 800
800
#275568
oklch(42.6% 0.059 227.6)
-
Step 900
900 (this color)
#1F414F
oklch(35.6% 0.046 227.1)
-
Step 950
950
#162932
oklch(26.9% 0.03 229.7)
#1F414F 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) | #3A4050 | 0.035 |
| Deuteranopia (no green cones) | #333B4F | 0.030 |
| Tritanopia (no blue cones) | #004545 | 0.033 |
| Achromatopsia (no color) | #3D3D3D | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F414F
#1F414F
oklch(35.6% 0.046 227.1)
- #503427
#503427
oklch(35.5% 0.046 45.7)
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 #1F414F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.019
- Dark Blue Grey #1F3B4D ΔE 0.020
- Dark Grey Blue #29465B ΔE 0.028
- Midnight Green #073B4C ΔE 0.030
- Onyx #343A40 ΔE 0.036
- Dark Teal #014D4E ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.046
Use #1F414F 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.