#133B49
Closest named color: Midnight Green (#073B4C). oklch(33.1% 0.05 224.7), rgb(19, 59, 73).
Aa
White text reads best on this color (12.00:1).
About this color
#133B49 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.050 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.009 away. White text reads best on it, at 12.00:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.74:1 |
| White text | 12.00:1 |
Values
| HEX | #133B49 |
| RGB | rgb(19, 59, 73) |
| HSL | hsl(196, 59%, 18%) |
| OKLCH | oklch(33.1% 0.05 224.7) |
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 #133B49 | 12.00:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #133B49 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #133B49 text on white | 12.00:1 | AAA | Lc 97.3 | Preferred for body text |
| #133B49 text on black | 1.74:1 | 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
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CBDCE4
oklch(88.4% 0.021 227.6)
-
Step 300
300
#A7C6D3
oklch(80.8% 0.038 225.1)
-
Step 400
400
#77A9BD
oklch(70.7% 0.06 224.8)
-
Step 500
500
#5194AD
oklch(63.2% 0.078 224.5)
-
Step 600
600
#327E98
oklch(55.7% 0.084 224.1)
-
Step 700
700
#246A82
oklch(49.2% 0.078 224.7)
-
Step 800
800
#205669
oklch(42.6% 0.064 224.7)
-
Step 900
900 (this color)
#133B49
oklch(33.1% 0.05 224.7)
-
Step 950
950
#142A32
oklch(27.1% 0.032 223.6)
#133B49 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) | #333A4A | 0.039 |
| Deuteranopia (no green cones) | #2C3449 | 0.035 |
| Tritanopia (no blue cones) | #003F40 | 0.027 |
| Achromatopsia (no color) | #363636 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #133B49
#133B49
oklch(33.1% 0.05 224.7)
- #4B2D1F
#4B2D1F
oklch(33.1% 0.05 45.6)
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 #133B49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.009
- Dark Blue Grey #1F3B4D ΔE 0.014
- Gunmetal #293241 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.037
- Onyx #343A40 ΔE 0.041
- Charcoal #264653 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.052
Use #133B49 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.