#617A94
Closest named color: Grey Blue (#647D8E). oklch(57% 0.05 249.7), rgb(97, 122, 148).
Aa
Black text reads best on this color (4.71:1).
About this color
#617A94 is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.050 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.015 away. Black text reads best on it, at 4.71:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.71:1 |
| White text | 4.44:1 |
Values
| HEX | #617A94 |
| RGB | rgb(97, 122, 148) |
| HSL | hsl(211, 21%, 48%) |
| OKLCH | oklch(57% 0.05 249.7) |
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 #617A94 | 4.44:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #617A94 | 4.71:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #617A94 text on white | 4.44:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #617A94 text on black | 4.71:1 | AA | Lc -30.8 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D3DAE1
oklch(88.5% 0.012 248)
-
Step 300
300
#B6C2CF
oklch(80.9% 0.023 250.3)
-
Step 400
400
#90A3B7
oklch(70.7% 0.036 249.7)
-
Step 500
500
#758CA5
oklch(63.1% 0.046 250.7)
-
Step 600
600 (this color)
#617A94
oklch(57% 0.05 249.7)
-
Step 700
700
#4D637A
oklch(49.1% 0.046 249.9)
-
Step 800
800
#3F5164
oklch(42.8% 0.039 250.1)
-
Step 900
900
#364351
oklch(37.7% 0.029 250.5)
-
Step 950
950
#1F272F
oklch(26.9% 0.019 248.5)
#617A94 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) | #707A95 | 0.020 |
| Deuteranopia (no green cones) | #6A7593 | 0.017 |
| Tritanopia (no blue cones) | #518083 | 0.042 |
| Achromatopsia (no color) | #777777 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #617A94
#617A94
oklch(57% 0.05 249.7)
- #8B7257
#8B7257
oklch(56.9% 0.05 68.7)
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 #617A94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.015
- Stormy Blue #507B9C ΔE 0.022
- Battleship Grey #6B7C85 ΔE 0.029
- Slate Gray #708090 ΔE 0.030
- Cerulean #457B9D ΔE 0.033
- Metallic Blue #4F738E ΔE 0.033
- Battleship Gray #6C757D ΔE 0.036
- Dull Blue #49759C ΔE 0.037
Use #617A94 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.