#153A49
Closest named color: Midnight Green (#073B4C). oklch(32.9% 0.049 227.8), rgb(21, 58, 73).
Aa
White text reads best on this color (12.11:1).
About this color
#153A49 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.049 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.010 away. White text reads best on it, at 12.11:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.73:1 |
| White text | 12.11:1 |
Values
| HEX | #153A49 |
| RGB | rgb(21, 58, 73) |
| HSL | hsl(197, 55%, 18%) |
| OKLCH | oklch(32.9% 0.049 227.8) |
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 #153A49 | 12.11:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #153A49 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #153A49 text on white | 12.11:1 | AAA | Lc 97.5 | Preferred for body text |
| #153A49 text on black | 1.73:1 | Fails | Lc 0.0 | 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
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D4
oklch(81% 0.037 228.5)
-
Step 400
400
#79A8BE
oklch(70.6% 0.06 228.6)
-
Step 500
500
#5593AE
oklch(63.2% 0.076 228)
-
Step 600
600
#377D99
oklch(55.7% 0.082 227.4)
-
Step 700
700
#286983
oklch(49.1% 0.077 228)
-
Step 800
800
#23566A
oklch(42.8% 0.063 226.9)
-
Step 900
900 (this color)
#153A49
oklch(32.9% 0.049 227.8)
-
Step 950
950
#152A32
oklch(27.1% 0.031 224.6)
#153A49 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) | #32394A | 0.036 |
| Deuteranopia (no green cones) | #2B3349 | 0.033 |
| Tritanopia (no blue cones) | #003E3F | 0.029 |
| Achromatopsia (no color) | #363636 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #153A49
#153A49
oklch(32.9% 0.049 227.8)
- #4A2D1E
#4A2D1E
oklch(32.9% 0.05 47.8)
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 #153A49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.010
- Dark Blue Grey #1F3B4D ΔE 0.013
- Gunmetal #293241 ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.035
- Onyx #343A40 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.046
- Charcoal #264653 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.053
Use #153A49 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.